"Rock Your Baby" is the debut single by George McCrae. Written and produced by Harry Wayne Casey and Richard Finch of KC and the Sunshine Band, "Rock Your Baby" was one of the landmark recordings of early disco music. A massive international hit, the song reached number one on the Billboard Hot 100 singles chart in the United States, spending two weeks at the top in July 1974, number one on the R&B singles chart, and repeating the feat on the UK Singles Chart, spending three weeks at the top of the chart in July 1974. Having sold 11 million copies, it is one of the fewer than 40 all-time singles to have sold 10 million (or more) physical copies worldwide.